*********************************************************************
        ȣƮ  ȭ  rsync 
*********************************************************************
 : ȣƮ  ȭ  rsync 
ۼ : (taejun@taejun.pe.kr http://www.taejun.pe.kr)
ۼ : 2000. 4. 12
*********************************************************************


ڷ : 
http://www.taejun.pe.kr/board2/read.php3?table=linuxinfo&no=28&page=1 
      rsync ̿ ȭϱ (ڸ pms89@hitel.net )

  6  - Ŀ ǻ,  rdist  ڷ

man page - rsync(1), rsyncd.conf(5)


0. 
 Ŭ͸   ϴ   ȣƮ ڷ
 ؾմϴ.  NFS  NFS  Ʈ Ʈ
 ô̳ ̹Ƿ   rdist rsync ̿  ֽϴ.  
ۿ rsync ̿Ͽ  ȣƮ ڷḦ ȭϴ  
մϴ.


1. rsync ΰ?
rsync rcp   ϴ α׷ rcp  پ ɼ
 ְ,  ȿ ͸ մϴ. (  ̿ 
ٸ κи ) ũ ȭ ð ȭ ̿ ȭ 
մϴ.
ֿ Ư¡  ϴ.

 ũ, device, , ׸, 㰡  
 GNU tar  exclude, exclude-from ɼ 
 rsh Ǵ ssh  밡
 root  ʿ
 anonymous Ǵ  rsync  (̷ )

2. rsync 
 Ϲ   α׷ .   Ȯ 
 α׷ ġ
# rpm -qa | grep rsync 
rsync-2.3.1-2

 rsync 2.3.1    "ȹ" Ƿ   
ġǾִٸ ݵ "2.3.1 ̻  Ʈ"ؾ 

 ȭ ϴ  : rsh, ssh   . ̸ 
 ʴ  rsync  TCP Ʈ 873 ̿   . 8
73 Ʈ ̿  inetd.conf  ߰  ؾմϴ.

rsync   stream  tcp     nowait  root    /usr/bin/rsync  rsyncd --daem
on

--daemon  Ѵٴ ̸̾߱ /etc/rsyncd.conf 
 մϴ.

 /etc/services    ִ Ȯϰ  ߰մϴ.

rsync           873/tcp                         # rsync



߰ϰ  inetd  ٽ ߰? 
# kill -HUP inetd_pid

 ssh rsh ϴ 쿡 inetd.conf  ʿ䰡 
.



3.  : /etc/rsyncd.conf
 ڽϴ.   ȣƮ www1̶ ϰڽϴ.

# cat /etc/rsyncd.conf

[web]
path = /home/www/htdocs
comment = web
uid = nobody
gid = nobody
use chroot = yes
read only = yes
hosts allow = www2.taejun.pe.kr
max connections = 3
timeout 600

[web] 񽺸
path  丮 
comment  
uid ϴ  id. ⺻ nobody
gid ϴ  ׷ id. ⺻ nobody
use chroot  path root 丮 . Ȼ ʿ.
read only б
hosts allow ȣƮ . ⺻ all host̹Ƿ  
 ݵ 
max connections ڼ
timeout Ŭ̾Ʈ ٽ ŸӾƿð. anonymous  ϴ 
  ؾ Ŭ̾Ʈ ׾    ü  .

* put(Ŭ̾Ʈ  ø ) ϱؼ read only 
= no   ؾߵ˴ϴ. 

 ܿ   ɼ    ɼ  
˴ϴ.  rsync ü ȣȭ     
մϴ. Ŀ SSL  ̸,  ȣȭ Ϸ 
ssh ϸ ˴ϴ.


4. rsync ϱ
( Ŭ̾Ʈ www2.taejun.pe.kr̶ )

rsync -avz --delete www1.taejun.pe.kr::web /home/taejun/~public_html

-a ī̺ . ɺ ũ, Ӽ, ۹̼,   
-v ϰ 
-z ۽  .

--delete www1.taejun.pe.kr web شϴ (/home/www/htdocs)
 ww2.taejun.pe.kr  /home/taejun/~public_html  鼭 www1
()   www2 .  www2   
 Ϸ ɼ .


rsync -avz foo:src/bar /data/tmp
  foo ȣƮ src/bar   ȣƮ /data
/tmp 丮 ű Դϴ.

⼭ ˾Ƶξ   ֽϴ.
  src/bar/  ϸ  ޶? bar   丮 
ü ؼ ɴϴ. ׷ bar/  ڿ 丮 ǥø 
ϸ  丮ȿ ִ 븸  ɴϴ.   ޶ 
 ְ. 

 :  :: ̴ ϱ? :  rsh ssh ϴ ̸ :: 
 rsync ü ϴ  ̿ ڷḦ   873 TCP 
Ʈ մϴ.  򰥸?  :  ⺻ rsh ̿ 
-e ssh ɼ ̿Ͽ ssh   ֽϴ. ssh Ϸ 
йȣ Էؾϴµ ̰͵ ·  ɼǿ 
 ˴ϴ. ̿ ؼ    man page ϼ
.

-avz  ɼ ִµ  ߿ ɼǸ  ϰڽϴ.

-v verbose (ڼϰ )
-a archive mode 

-u update only(ο   )
--delete ʿ  Ŭ̾Ʈʿ ִ  
-z compress (۽  )
--daemon    (̰ inetd.conf   ʿ)



-a  -rlptg  մϴ. 
-r recursive ( 丮 )
-l ɺ ũ 
-p ۹̼ Ʈ
-t ð  (̰   ð ٲ)
-g ׷̸ 

Ϲ rsync ̿ time-stamp ̿  մϴ. 

  ũƮ  cron  Ͽ ֱ ͸ 
ȭϸ ˴ϴ.



5. ġ
⺻ ȣȭ  ʴ  ƽ ణ մϴ. ssh
  ͵ Ѱ  йȣ ־ϰ  ֱ 
 ·   ִµ ̷  ȹ   
ְ. 

     Ű  װ  ݵ ֱ 
Ű Ʈ ϴ !  .
